Automatic fire-extinguisher.



P. J. SULLIVAN.

AUTOMATIC FIRE EXTINGUISHER.

APPLICATION FILED N0v.30. 1915.

Patented 001;. 31, 1916.

UNITED PATENT @lFFifCH PATRICK J. SULLIVAN, F BOSTON, MASSACHUSETTS.

AUTOMATIC FIRE-EXTINGUISHEB.

nsoaeie.

Application filed November 30, 1915.

To all whom it may concern:

Be it known that I, PATRICK J. SULLIVAN, a citizen of the United States, residing at Boston, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvements in Automatic Fire-Extinguishers, of which the following is a specification.

My invention relates to automatic fire extinguishers of that class comprising a port ciosure held on its seat by means that is acted upon by the heat from a fire to release the closure and thereby permit of the discharge of water from the port.

The object of my invention is to provide an improved fire extinguisher of the class indicated and it consists of a fire extinguisher embodying the peculiar features of construction and mode of operation set forth in the following description and particularly pointed out and defined in the claims at the close thereof.

in the accompanying drawings: Figure 1 is an elevation of a fire extinguisher constructed in accordance with my invention. Fig. 2 is a plan view of the rocker hereinafter described. Fig. 3 is a perspective view of one of the sections of the two-part post hereinafter described. Fig. 4 is a perspective view of the other post hereinafter deand abutment screw 6.

Tie outlet end of the port 3 is closed by a cap 7 consisting of a disk 8 of German silver or other suitable non-corrosive material. and a rocker seat 9 of composition or the i like which may also be in the form of a disk. This rocker seat 9 is formed upon its top side with a centrally disposed recess 10 and upon its under side with a depending annular flange 11 seated in an annular groove 12 provided upon the top side of the disk 8. Upon its under side the disk 8 is formed with a boss 13 fitting into the end of the port 3 and serving to prevent lateral displacement of said disk on the body. The engagement of the flange 11 with the groove Specification of Letters Patent.

Patented (hot. 31, 191G.

Serial No. 64,367.

12 prevents lateral displacement of the rocker seat on disk 8.

I Bearing against the top side of theseat 9 is a rocker 14 made with a conical under side 15 provided at its middle with a semispherical teat 16 occupying the recess 10 of seat 9. The top side of the rocker is formed with two sockets 17 and 18, one at each side of the center of said rocker, within which are seated the lower ends of two struts 19 and 20. At its upper end the strut 1!} is formed with a laterally extending arm 21 having upon one side thereof a recess to receive the end of the abutment screw 6 and. upon the opposite side thereof a socket 23 within which is seated the upper end of the strut 20. This arm 21 serves as an abutment shoulder for strut 20.

The strut comprises two parts or sections 24 and 25 which are alike in size and form, each being made with a transverse bead 26 and groove 27, with the head of each occupying the groove of the other. These two sections 24 and 25 are united by fusible solder 28 made so as to fuse at the desired temperature.

When the parts of the extinguisher are assembled the abutment screw 6 is screwed down tight onto the arm 21 of strut 19 whose outer end is supported by the strut 20, the engagement of the lower ends of the two struts with the rocker 14 at opposite sides of the center of the latter serving to force said rocker and cap 7 bodily toward body 1. After the screw 6 has been adjusted into its permanent position it is locked against displacement by means of a pin The supply of water with which the port 3 communicates when the extinguisher is in use is, as usual, under pressure so that it will be clear that when a fire occurs adjacent the extinguisher the heat thereof will melt the solder 28 and the two sections 24 and 25 of strut 20 will be disconnected thereby permitting the cap holding means to collapse whereupon the water forces cap 7 away from its seat and sweeps said cap, rocker 11, strut 19 and sections 24 and 25 aside as it discharges from port 3.

The rocker 14 is made with an outwardly extending arm 30 to engage the yoke 4 and thereby prevent the two struts 19 and 20 from being positioned in the same plane with the two arms of yoke 4.

As will be clear from the foregoing defor them to jam and prevent, or interfere with, the complete and full opening of the port 3 when the solder 28 is fused.

What I claim is:

1. In a fire extinguisher, the combination with a body formed with a port, a closure for said port, and an abutment disposed opposite the discharge end of said port, of two longitudinally disposed members for normally holding said closure in port closing position, said members being supported by and transmitting thrust between said closure and said abutment and one of said members 7 being made up of two sections having their ends overlapped and soldered together so that they are movable bodily endwise relativelv under pressure from said closure when the solder is softened by heat.

2. A fire extinguisher having, in combination, a cap; an abutment; and means betweenthe abutment and cap for holding the latter closed comprising a rocker pivotally seated on said cap and extending transversely thereof, a member bearing at one end against the rocker at one side of the seat of the latter and intermediate its ends against said abutment, and a second member for normally holding the rocker against tilting on said cap, said second member hearing at one 'end against the rocker at the opposite side of the seat of the latter and at its other end abutting against the first member and being made up of twooverlapping sections united by solder both of said members being supported by and transmitting thrust between said abutment and said rocker.

3. A fire extinguisher comprising a nozzle; a cap normally closing the outlet of said nozzle; an abutment opposite said cap, and means between the abutment and cap for holding the latter closed comprising two members supported by and transmitting thrust between said cap and said abutment, one of said members directly engaging the abutment and being made with an integral seat adjacent the latter, and the other member abutting. at one end against the seat on the first member and being made up of two parts having their ends overlapped and. soldered together so that they are movable bodily endwise relatively under pressure from the cap when the solder is softened by heat.

at. A fire extinguisher comprising a nozzle; a cap normally closing the outlet of said nozzle; a rocker pivotally seated on said cap; an abutment opposite said rocker, and two members supported by and transmitting thrust between the rocker and abutment, one of said members being made with an integral seat near one end thereof and having engagement with the abutment at a point between said seat and its opposite end and with said opposite end engaging the rocker at one side of the pivot of the latter, and the other member having one end thereof bearing against the seat on the first member and its opposite end bearing against the rocker at the opposite side of the pivot of the latter, said last mentioned member being made up of two parts having their ends overlapped and soldered together so that they are movable bodily endwise relatively under pressure from the cap and rocker when the solder is softened by heat.

In testimony whereof I have aflixed my signature.

PATRICK J, SULLIVAN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

1 Washington, D. 0. 

